<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<meta name="generator" content="Doxygen 1.8.5"/>
<title>Faiss: /data/users/hoss/faiss/gpu/GpuAutoTune.cpp Source File</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/search.js"></script>
<script type="text/javascript">
  $(document).ready(function() { searchBox.OnSelectItem(0); });
</script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
 <tbody>
 <tr style="height: 56px;">
  <td style="padding-left: 0.5em;">
   <div id="projectname">Faiss
   </div>
  </td>
 </tr>
 </tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.8.5 -->
<script type="text/javascript">
var searchBox = new SearchBox("searchBox", "search",false,'Search');
</script>
  <div id="navrow1" class="tabs">
    <ul class="tablist">
      <li><a href="index.html"><span>Main&#160;Page</span></a></li>
      <li><a href="namespaces.html"><span>Namespaces</span></a></li>
      <li><a href="annotated.html"><span>Classes</span></a></li>
      <li class="current"><a href="files.html"><span>Files</span></a></li>
      <li>
        <div id="MSearchBox" class="MSearchBoxInactive">
        <span class="left">
          <img id="MSearchSelect" src="search/mag_sel.png"
               onmouseover="return searchBox.OnSearchSelectShow()"
               onmouseout="return searchBox.OnSearchSelectHide()"
               alt=""/>
          <input type="text" id="MSearchField" value="Search" accesskey="S"
               onfocus="searchBox.OnSearchFieldFocus(true)" 
               onblur="searchBox.OnSearchFieldFocus(false)" 
               onkeyup="searchBox.OnSearchFieldChange(event)"/>
          </span><span class="right">
            <a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a>
          </span>
        </div>
      </li>
    </ul>
  </div>
  <div id="navrow2" class="tabs2">
    <ul class="tablist">
      <li><a href="files.html"><span>File&#160;List</span></a></li>
    </ul>
  </div>
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
     onmouseover="return searchBox.OnSearchSelectShow()"
     onmouseout="return searchBox.OnSearchSelectHide()"
     onkeydown="return searchBox.OnSearchSelectKey(event)">
<a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(0)"><span class="SelectionMark">&#160;</span>All</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(1)"><span class="SelectionMark">&#160;</span>Classes</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(2)"><span class="SelectionMark">&#160;</span>Namespaces</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(3)"><span class="SelectionMark">&#160;</span>Functions</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(4)"><span class="SelectionMark">&#160;</span>Variables</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(5)"><span class="SelectionMark">&#160;</span>Typedefs</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(6)"><span class="SelectionMark">&#160;</span>Enumerations</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(7)"><span class="SelectionMark">&#160;</span>Enumerator</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(8)"><span class="SelectionMark">&#160;</span>Friends</a></div>

<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0" 
        name="MSearchResults" id="MSearchResults">
</iframe>
</div>

<div id="nav-path" class="navpath">
  <ul>
<li class="navelem"><a class="el" href="dir_5956a3e80a20e8e03eb577bedb92689f.html">gpu</a></li>  </ul>
</div>
</div><!-- top -->
<div class="header">
  <div class="headertitle">
<div class="title">GpuAutoTune.cpp</div>  </div>
</div><!--header-->
<div class="contents">
<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/**</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment"> * Copyright (c) Facebook, Inc. and its affiliates.</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> * This source code is licensed under the MIT license found in the</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> * LICENSE file in the root directory of this source tree.</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;</div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="preprocessor">#include &quot;GpuAutoTune.h&quot;</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="preprocessor">#include &lt;typeinfo&gt;</span></div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;</div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="preprocessor">#include &quot;GpuIndex.h&quot;</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="preprocessor">#include &quot;../FaissAssert.h&quot;</span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="preprocessor">#include &quot;../index_io.h&quot;</span></div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="preprocessor">#include &quot;../IndexFlat.h&quot;</span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="preprocessor">#include &quot;../IndexIVF.h&quot;</span></div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="preprocessor">#include &quot;../IndexIVFFlat.h&quot;</span></div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="preprocessor">#include &quot;../IndexIVFPQ.h&quot;</span></div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="preprocessor">#include &quot;../IndexReplicas.h&quot;</span></div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="preprocessor">#include &quot;../VectorTransform.h&quot;</span></div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="preprocessor">#include &quot;../MetaIndexes.h&quot;</span></div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="preprocessor">#include &quot;GpuIndexFlat.h&quot;</span></div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="preprocessor">#include &quot;GpuIndexIVFFlat.h&quot;</span></div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="preprocessor">#include &quot;GpuIndexIVFPQ.h&quot;</span></div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="preprocessor">#include &quot;utils/DeviceUtils.h&quot;</span></div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;</div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="keyword">namespace </span>faiss { <span class="keyword">namespace </span>gpu {</div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;</div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="comment">/**********************************************************</span></div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="comment"> * Cloning from/to GPU</span></div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="comment"> **********************************************************/</span></div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;</div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;</div>
<div class="line"><a name="l00033"></a><span class="lineno"><a class="line" href="structfaiss_1_1gpu_1_1ToCPUCloner.html">   33</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structfaiss_1_1gpu_1_1ToCPUCloner.html">ToCPUCloner</a>: <a class="code" href="structfaiss_1_1Cloner.html">Cloner</a> {</div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;</div>
<div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;    <span class="keywordtype">void</span> merge_index(<a class="code" href="structfaiss_1_1Index.html">Index</a> *dst, <a class="code" href="structfaiss_1_1Index.html">Index</a> *src, <span class="keywordtype">bool</span> successive_ids) {</div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;        <span class="keywordflow">if</span> (<span class="keyword">auto</span> ifl = dynamic_cast&lt;IndexFlat *&gt;(dst)) {</div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;            <span class="keyword">auto</span> ifl2 = <span class="keyword">dynamic_cast&lt;</span><span class="keyword">const </span><a class="code" href="structfaiss_1_1IndexFlat.html">IndexFlat</a> *<span class="keyword">&gt;</span>(src);</div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;            FAISS_ASSERT(ifl2);</div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;            FAISS_ASSERT(successive_ids);</div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;            ifl-&gt;add(ifl2-&gt;ntotal, ifl2-&gt;xb.data());</div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;        } <span class="keywordflow">else</span> <span class="keywordflow">if</span>(<span class="keyword">auto</span> ifl = dynamic_cast&lt;IndexIVFFlat *&gt;(dst)) {</div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;            <span class="keyword">auto</span> ifl2 = <span class="keyword">dynamic_cast&lt;</span><a class="code" href="structfaiss_1_1IndexIVFFlat.html">IndexIVFFlat</a> *<span class="keyword">&gt;</span>(src);</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;            FAISS_ASSERT(ifl2);</div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;            ifl-&gt;merge_from(*ifl2, successive_ids ? ifl-&gt;ntotal : 0);</div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;        } <span class="keywordflow">else</span> <span class="keywordflow">if</span>(<span class="keyword">auto</span> ifl = dynamic_cast&lt;IndexIVFPQ *&gt;(dst)) {</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;            <span class="keyword">auto</span> ifl2 = <span class="keyword">dynamic_cast&lt;</span><a class="code" href="structfaiss_1_1IndexIVFPQ.html">IndexIVFPQ</a> *<span class="keyword">&gt;</span>(src);</div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;            FAISS_ASSERT(ifl2);</div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;            ifl-&gt;merge_from(*ifl2, successive_ids ? ifl-&gt;ntotal : 0);</div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;        } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;            FAISS_ASSERT(!<span class="stringliteral">&quot;merging not implemented for this type of class&quot;</span>);</div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;        }</div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;    }</div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;</div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;</div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;    <a class="code" href="structfaiss_1_1Index.html">Index</a> *clone_Index(<span class="keyword">const</span> <a class="code" href="structfaiss_1_1Index.html">Index</a> *index)<span class="keyword"> override </span>{</div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;        <span class="keywordflow">if</span>(<span class="keyword">auto</span> ifl = dynamic_cast&lt;const GpuIndexFlat *&gt;(index)) {</div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;            <a class="code" href="structfaiss_1_1IndexFlat.html">IndexFlat</a> *res = <span class="keyword">new</span> <a class="code" href="structfaiss_1_1IndexFlat.html">IndexFlat</a>();</div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;            ifl-&gt;copyTo(res);</div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;            <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;        } <span class="keywordflow">else</span> <span class="keywordflow">if</span>(<span class="keyword">auto</span> ifl = dynamic_cast&lt;const GpuIndexIVFFlat *&gt;(index)) {</div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;            <a class="code" href="structfaiss_1_1IndexIVFFlat.html">IndexIVFFlat</a> *res = <span class="keyword">new</span> <a class="code" href="structfaiss_1_1IndexIVFFlat.html">IndexIVFFlat</a>();</div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;            ifl-&gt;copyTo(res);</div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;            <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;        } <span class="keywordflow">else</span> <span class="keywordflow">if</span>(<span class="keyword">auto</span> ipq = dynamic_cast&lt;const GpuIndexIVFPQ *&gt;(index)) {</div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;            <a class="code" href="structfaiss_1_1IndexIVFPQ.html">IndexIVFPQ</a> *res = <span class="keyword">new</span> <a class="code" href="structfaiss_1_1IndexIVFPQ.html">IndexIVFPQ</a>();</div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;            ipq-&gt;copyTo(res);</div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;            <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;</div>
<div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;            <span class="comment">// for IndexShards and IndexReplicas we assume that the</span></div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;            <span class="comment">// objective is to make a single component out of them</span></div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;            <span class="comment">// (inverse op of ToGpuClonerMultiple)</span></div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;</div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;        } <span class="keywordflow">else</span> <span class="keywordflow">if</span>(<span class="keyword">auto</span> ish = dynamic_cast&lt;const IndexShards *&gt;(index)) {</div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;            <span class="keywordtype">int</span> nshard = ish-&gt;count();</div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;            FAISS_ASSERT(nshard &gt; 0);</div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;            <a class="code" href="structfaiss_1_1Index.html">Index</a> *res = clone_Index(ish-&gt;at(0));</div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;            <span class="keywordflow">for</span>(<span class="keywordtype">int</span> i = 1; i &lt; ish-&gt;count(); i++) {</div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;                <a class="code" href="structfaiss_1_1Index.html">Index</a> *res_i = clone_Index(ish-&gt;at(i));</div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;                merge_index(res, res_i, ish-&gt;successive_ids);</div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;                <span class="keyword">delete</span> res_i;</div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;            }</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;            <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;        } <span class="keywordflow">else</span> <span class="keywordflow">if</span>(<span class="keyword">auto</span> ipr = dynamic_cast&lt;const IndexReplicas *&gt;(index)) {</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;            <span class="comment">// just clone one of the replicas</span></div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;            FAISS_ASSERT(ipr-&gt;count() &gt; 0);</div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;            <span class="keywordflow">return</span> clone_Index(ipr-&gt;at(0));</div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;        } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;            <span class="keywordflow">return</span> Cloner::clone_Index(index);</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;        }</div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;    }</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;};</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;</div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;<a class="code" href="structfaiss_1_1Index.html">faiss::Index</a> * index_gpu_to_cpu(<span class="keyword">const</span> <a class="code" href="structfaiss_1_1Index.html">faiss::Index</a> *gpu_index)</div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;{</div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;    <a class="code" href="structfaiss_1_1gpu_1_1ToCPUCloner.html">ToCPUCloner</a> cl;</div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;    <span class="keywordflow">return</span> cl.clone_Index(gpu_index);</div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;}</div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;</div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;</div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;</div>
<div class="line"><a name="l00101"></a><span class="lineno"><a class="line" href="structfaiss_1_1gpu_1_1ToGpuCloner.html">  101</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structfaiss_1_1gpu_1_1ToGpuCloner.html">ToGpuCloner</a>: <a class="code" href="structfaiss_1_1Cloner.html">faiss::Cloner</a>, <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html">GpuClonerOptions</a> {</div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;    <a class="code" href="classfaiss_1_1gpu_1_1GpuResources.html">GpuResources</a> *resources;</div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;    <span class="keywordtype">int</span> device;</div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;</div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;    <a class="code" href="structfaiss_1_1gpu_1_1ToGpuCloner.html">ToGpuCloner</a>(<a class="code" href="classfaiss_1_1gpu_1_1GpuResources.html">GpuResources</a> *resources, <span class="keywordtype">int</span> device,</div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;                <span class="keyword">const</span> <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html">GpuClonerOptions</a> &amp;options):</div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;        <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html">GpuClonerOptions</a>(options), resources(resources), device(device)</div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;    {}</div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;</div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;    <a class="code" href="structfaiss_1_1Index.html">Index</a> *clone_Index(<span class="keyword">const</span> <a class="code" href="structfaiss_1_1Index.html">Index</a> *index)<span class="keyword"> override </span>{</div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;        <span class="keywordflow">if</span>(<span class="keyword">auto</span> ifl = dynamic_cast&lt;const IndexFlat *&gt;(index)) {</div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;          <a class="code" href="structfaiss_1_1gpu_1_1GpuIndexFlatConfig.html">GpuIndexFlatConfig</a> config;</div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;          config.<a class="code" href="structfaiss_1_1gpu_1_1GpuIndexConfig.html#aab05a0aa7b42feae7df4e556a52ead57">device</a> = device;</div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;          config.<a class="code" href="structfaiss_1_1gpu_1_1GpuIndexFlatConfig.html#afd694186c87751937a646f3db2c8ba3d">useFloat16</a> = <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ac7cc57d6091d6a79ea6020bf8d1fbe27">useFloat16</a>;</div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;          config.<a class="code" href="structfaiss_1_1gpu_1_1GpuIndexFlatConfig.html#a0342a26f5e59563bfe04f3f80e3b27f0">storeTransposed</a> = <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#a5f2470ec5b2a8fe7aae0542f113b781d">storeTransposed</a>;</div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;</div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;          <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexFlat.html">GpuIndexFlat</a>(resources, ifl, config);</div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;        } <span class="keywordflow">else</span> <span class="keywordflow">if</span>(<span class="keyword">auto</span> ifl = dynamic_cast&lt;const faiss::IndexIVFFlat *&gt;(index)) {</div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;          <a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFFlatConfig.html">GpuIndexIVFFlatConfig</a> config;</div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;          config.<a class="code" href="structfaiss_1_1gpu_1_1GpuIndexConfig.html#aab05a0aa7b42feae7df4e556a52ead57">device</a> = device;</div>
<div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;          config.<a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFConfig.html#af432221761d48e4753f501208a60264d">indicesOptions</a> = <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ad960ac51b7cc607fcb1a1b07efc32a9e">indicesOptions</a>;</div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;          config.<a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFConfig.html#a6d357a9a67a2fed9c8e7b139712d30f6">flatConfig</a>.<a class="code" href="structfaiss_1_1gpu_1_1GpuIndexFlatConfig.html#afd694186c87751937a646f3db2c8ba3d">useFloat16</a> = <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#a85f3093908b6e9a503c24bb226b17b1b">useFloat16CoarseQuantizer</a>;</div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;          config.<a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFConfig.html#a6d357a9a67a2fed9c8e7b139712d30f6">flatConfig</a>.<a class="code" href="structfaiss_1_1gpu_1_1GpuIndexFlatConfig.html#a0342a26f5e59563bfe04f3f80e3b27f0">storeTransposed</a> = <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#a5f2470ec5b2a8fe7aae0542f113b781d">storeTransposed</a>;</div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;          config.<a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFFlatConfig.html#ab98ac354bcd5632976f7edc2deda6e57">useFloat16IVFStorage</a> = <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ac7cc57d6091d6a79ea6020bf8d1fbe27">useFloat16</a>;</div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;</div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;          <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFFlat.html">GpuIndexIVFFlat</a> *res =</div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;            <span class="keyword">new</span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFFlat.html">GpuIndexIVFFlat</a>(resources,</div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;                                ifl-&gt;d,</div>
<div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;                                ifl-&gt;nlist,</div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;                                ifl-&gt;metric_type,</div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;                                config);</div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;          <span class="keywordflow">if</span>(<a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ab60dd87e51af59373a48d73852573f04">reserveVecs</a> &gt; 0 &amp;&amp; ifl-&gt;ntotal == 0) {</div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;              res-&gt;<a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFFlat.html#a329d7734f1285788d10c1fbf1f88d72f">reserveMemory</a>(<a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ab60dd87e51af59373a48d73852573f04">reserveVecs</a>);</div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;          }</div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;</div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;          res-&gt;<a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFFlat.html#a96fd66c31c7e46b1549ed61d1b3476f3">copyFrom</a>(ifl);</div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;          <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;        } <span class="keywordflow">else</span> <span class="keywordflow">if</span>(<span class="keyword">auto</span> ipq = dynamic_cast&lt;const faiss::IndexIVFPQ *&gt;(index)) {</div>
<div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;            <span class="keywordflow">if</span>(<a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#abc7d0451773e0f2f640338533abc1397">verbose</a>)</div>
<div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;                printf(<span class="stringliteral">&quot;  IndexIVFPQ size %ld -&gt; GpuIndexIVFPQ &quot;</span></div>
<div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;                       <span class="stringliteral">&quot;indicesOptions=%d &quot;</span></div>
<div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;                       <span class="stringliteral">&quot;usePrecomputed=%d useFloat16=%d reserveVecs=%ld\n&quot;</span>,</div>
<div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;                       ipq-&gt;ntotal, <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ad960ac51b7cc607fcb1a1b07efc32a9e">indicesOptions</a>, <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#abc9c607f2dfc9f23942a523fb49c63fe">usePrecomputed</a>,</div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;                       <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ac7cc57d6091d6a79ea6020bf8d1fbe27">useFloat16</a>, <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ab60dd87e51af59373a48d73852573f04">reserveVecs</a>);</div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;            <a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFPQConfig.html">GpuIndexIVFPQConfig</a> config;</div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;            config.<a class="code" href="structfaiss_1_1gpu_1_1GpuIndexConfig.html#aab05a0aa7b42feae7df4e556a52ead57">device</a> = device;</div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;            config.<a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFConfig.html#af432221761d48e4753f501208a60264d">indicesOptions</a> = <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ad960ac51b7cc607fcb1a1b07efc32a9e">indicesOptions</a>;</div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;            config.<a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFConfig.html#a6d357a9a67a2fed9c8e7b139712d30f6">flatConfig</a>.<a class="code" href="structfaiss_1_1gpu_1_1GpuIndexFlatConfig.html#afd694186c87751937a646f3db2c8ba3d">useFloat16</a> = <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#a85f3093908b6e9a503c24bb226b17b1b">useFloat16CoarseQuantizer</a>;</div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;            config.<a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFConfig.html#a6d357a9a67a2fed9c8e7b139712d30f6">flatConfig</a>.<a class="code" href="structfaiss_1_1gpu_1_1GpuIndexFlatConfig.html#a0342a26f5e59563bfe04f3f80e3b27f0">storeTransposed</a> = <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#a5f2470ec5b2a8fe7aae0542f113b781d">storeTransposed</a>;</div>
<div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;            config.<a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFPQConfig.html#a9dbbec78d77d90b7b150f543e477cc49">useFloat16LookupTables</a> = <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ac7cc57d6091d6a79ea6020bf8d1fbe27">useFloat16</a>;</div>
<div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;            config.<a class="code" href="structfaiss_1_1gpu_1_1GpuIndexIVFPQConfig.html#ae5b5c7acc06743e5bcca197bc33c30ec">usePrecomputedTables</a> = <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#abc9c607f2dfc9f23942a523fb49c63fe">usePrecomputed</a>;</div>
<div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;</div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;            <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html">GpuIndexIVFPQ</a> *res = <span class="keyword">new</span> <a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html">GpuIndexIVFPQ</a>(resources, ipq, config);</div>
<div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;</div>
<div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;            <span class="keywordflow">if</span>(<a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ab60dd87e51af59373a48d73852573f04">reserveVecs</a> &gt; 0 &amp;&amp; ipq-&gt;ntotal == 0) {</div>
<div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;                res-&gt;<a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a4e7d62e21f7e23fa4e94c69131389eea">reserveMemory</a>(<a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ab60dd87e51af59373a48d73852573f04">reserveVecs</a>);</div>
<div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;            }</div>
<div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;</div>
<div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;            <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;        } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;            <span class="keywordflow">return</span> Cloner::clone_Index(index);</div>
<div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;        }</div>
<div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;    }</div>
<div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;</div>
<div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;};</div>
<div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;</div>
<div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;</div>
<div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;<a class="code" href="structfaiss_1_1Index.html">faiss::Index</a> * index_cpu_to_gpu(</div>
<div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;       <a class="code" href="classfaiss_1_1gpu_1_1GpuResources.html">GpuResources</a>* resources, <span class="keywordtype">int</span> device,</div>
<div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;       <span class="keyword">const</span> <a class="code" href="structfaiss_1_1Index.html">faiss::Index</a> *index,</div>
<div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;       <span class="keyword">const</span> <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html">GpuClonerOptions</a> *options)</div>
<div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;{</div>
<div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;    <a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html">GpuClonerOptions</a> defaults;</div>
<div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;    <a class="code" href="structfaiss_1_1gpu_1_1ToGpuCloner.html">ToGpuCloner</a> cl(resources, device, options ? *options : defaults);</div>
<div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;    <span class="keywordflow">return</span> cl.clone_Index(index);</div>
<div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;}</div>
<div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;</div>
<div class="line"><a name="l00178"></a><span class="lineno"><a class="line" href="structfaiss_1_1gpu_1_1ToGpuClonerMultiple.html">  178</a></span>&#160;<span class="keyword">struct </span><a class="code" href="structfaiss_1_1gpu_1_1ToGpuClonerMultiple.html">ToGpuClonerMultiple</a>: <a class="code" href="structfaiss_1_1Cloner.html">faiss::Cloner</a>, <a class="code" href="structfaiss_1_1gpu_1_1GpuMultipleClonerOptions.html">GpuMultipleClonerOptions</a> {</div>
<div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;    std::vector&lt;ToGpuCloner&gt; sub_cloners;</div>
<div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;</div>
<div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;    <a class="code" href="structfaiss_1_1gpu_1_1ToGpuClonerMultiple.html">ToGpuClonerMultiple</a>(std::vector&lt;GpuResources *&gt; &amp; resources,</div>
<div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;                        std::vector&lt;int&gt;&amp; devices,</div>
<div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;                        <span class="keyword">const</span> <a class="code" href="structfaiss_1_1gpu_1_1GpuMultipleClonerOptions.html">GpuMultipleClonerOptions</a> &amp;options):</div>
<div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;        <a class="code" href="structfaiss_1_1gpu_1_1GpuMultipleClonerOptions.html">GpuMultipleClonerOptions</a>(options)</div>
<div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;    {</div>
<div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;        FAISS_ASSERT(resources.size() == devices.size());</div>
<div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;        <span class="keywordflow">for</span>(<span class="keywordtype">int</span> i = 0; i &lt; resources.size(); i++) {</div>
<div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;            sub_cloners.push_back(<a class="code" href="structfaiss_1_1gpu_1_1ToGpuCloner.html">ToGpuCloner</a>(</div>
<div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;                     resources[i], devices[i], options));</div>
<div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;        }</div>
<div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;    }</div>
<div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;</div>
<div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;</div>
<div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;    <a class="code" href="structfaiss_1_1gpu_1_1ToGpuClonerMultiple.html">ToGpuClonerMultiple</a>(<span class="keyword">const</span> std::vector&lt;ToGpuCloner&gt; &amp; sub_cloners,</div>
<div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;                        <span class="keyword">const</span> <a class="code" href="structfaiss_1_1gpu_1_1GpuMultipleClonerOptions.html">GpuMultipleClonerOptions</a> &amp;options):</div>
<div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;        <a class="code" href="structfaiss_1_1gpu_1_1GpuMultipleClonerOptions.html">GpuMultipleClonerOptions</a>(options),</div>
<div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;        sub_cloners(sub_cloners)</div>
<div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;    {}</div>
<div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;</div>
<div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;</div>
<div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;    <span class="keywordtype">void</span> copy_ivf_shard (<span class="keyword">const</span> <a class="code" href="structfaiss_1_1IndexIVF.html">IndexIVF</a> *index_ivf, <a class="code" href="structfaiss_1_1IndexIVF.html">IndexIVF</a> *idx2,</div>
<div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;                         <span class="keywordtype">long</span> n, <span class="keywordtype">long</span> i) {</div>
<div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;        <span class="keywordflow">if</span> (<a class="code" href="structfaiss_1_1gpu_1_1GpuMultipleClonerOptions.html#a9548f823297298b0a78109dec7feb45e">shard_type</a> == 2) {</div>
<div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;            <span class="keywordtype">long</span> i0 = i * index_ivf-&gt;<a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a> / n;</div>
<div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;            <span class="keywordtype">long</span> i1 = (i + 1) * index_ivf-&gt;<a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a> / n;</div>
<div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;</div>
<div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;            <span class="keywordflow">if</span>(<a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#abc7d0451773e0f2f640338533abc1397">verbose</a>)</div>
<div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;                printf(<span class="stringliteral">&quot;IndexShards shard %ld indices %ld:%ld\n&quot;</span>,</div>
<div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;                       i, i0, i1);</div>
<div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;            index_ivf-&gt;<a class="code" href="structfaiss_1_1IndexIVF.html#aa64ecc5e7b286e9b0f252796edd4714b">copy_subset_to</a>(*idx2, 2, i0, i1);</div>
<div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;            FAISS_ASSERT(idx2-&gt;<a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a> == i1 - i0);</div>
<div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;        } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="structfaiss_1_1gpu_1_1GpuMultipleClonerOptions.html#a9548f823297298b0a78109dec7feb45e">shard_type</a> == 1) {</div>
<div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;            <span class="keywordflow">if</span>(<a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#abc7d0451773e0f2f640338533abc1397">verbose</a>)</div>
<div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;                printf(<span class="stringliteral">&quot;IndexShards shard %ld select modulo %ld = %ld\n&quot;</span>,</div>
<div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;                       i, n, i);</div>
<div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;            index_ivf-&gt;<a class="code" href="structfaiss_1_1IndexIVF.html#aa64ecc5e7b286e9b0f252796edd4714b">copy_subset_to</a>(*idx2, 1, n, i);</div>
<div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;        } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;            FAISS_THROW_FMT (<span class="stringliteral">&quot;shard_type %d not implemented&quot;</span>, <a class="code" href="structfaiss_1_1gpu_1_1GpuMultipleClonerOptions.html#a9548f823297298b0a78109dec7feb45e">shard_type</a>);</div>
<div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;        }</div>
<div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;</div>
<div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;    }</div>
<div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;</div>
<div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;    <a class="code" href="structfaiss_1_1Index.html">Index</a> * clone_Index_to_shards (<span class="keyword">const</span> <a class="code" href="structfaiss_1_1Index.html">Index</a> *index) {</div>
<div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;        <span class="keywordtype">long</span> n = sub_cloners.size();</div>
<div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;</div>
<div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;        <span class="keyword">auto</span> index_ivfpq =</div>
<div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160;            <span class="keyword">dynamic_cast&lt;</span><span class="keyword">const </span><a class="code" href="structfaiss_1_1IndexIVFPQ.html">faiss::IndexIVFPQ</a> *<span class="keyword">&gt;</span>(index);</div>
<div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;        <span class="keyword">auto</span> index_ivfflat =</div>
<div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;            <span class="keyword">dynamic_cast&lt;</span><span class="keyword">const </span><a class="code" href="structfaiss_1_1IndexIVFFlat.html">faiss::IndexIVFFlat</a> *<span class="keyword">&gt;</span>(index);</div>
<div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;        <span class="keyword">auto</span> index_flat =</div>
<div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;            <span class="keyword">dynamic_cast&lt;</span><span class="keyword">const </span><a class="code" href="structfaiss_1_1IndexFlat.html">faiss::IndexFlat</a> *<span class="keyword">&gt;</span>(index);</div>
<div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;        FAISS_THROW_IF_NOT_MSG (</div>
<div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;              index_ivfpq || index_ivfflat || index_flat,</div>
<div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;              <span class="stringliteral">&quot;IndexShards implemented only for &quot;</span></div>
<div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;              <span class="stringliteral">&quot;IndexIVFFlat, IndexFlat and IndexIVFPQ&quot;</span>);</div>
<div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;</div>
<div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;        std::vector&lt;faiss::Index*&gt; shards(n);</div>
<div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;</div>
<div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;        <span class="keywordflow">for</span>(<span class="keywordtype">long</span> i = 0; i &lt; n; i++) {</div>
<div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;            <span class="comment">// make a shallow copy</span></div>
<div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;            <span class="keywordflow">if</span>(<a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ab60dd87e51af59373a48d73852573f04">reserveVecs</a>)</div>
<div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160;                sub_cloners[i].reserveVecs =</div>
<div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;                    (<a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ab60dd87e51af59373a48d73852573f04">reserveVecs</a> + n - 1) / n;</div>
<div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;</div>
<div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;            <span class="keywordflow">if</span> (index_ivfpq) {</div>
<div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;                <a class="code" href="structfaiss_1_1IndexIVFPQ.html">faiss::IndexIVFPQ</a> idx2(</div>
<div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160;                    index_ivfpq-&gt;quantizer, index_ivfpq-&gt;d,</div>
<div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;                    index_ivfpq-&gt;nlist, index_ivfpq-&gt;code_size,</div>
<div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;                    index_ivfpq-&gt;pq.nbits);</div>
<div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160;                idx2.<a class="code" href="structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e">metric_type</a> = index_ivfpq-&gt;metric_type;</div>
<div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160;                idx2.<a class="code" href="structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16">pq</a> = index_ivfpq-&gt;pq;</div>
<div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160;                idx2.<a class="code" href="structfaiss_1_1IndexIVF.html#affed235eadf27a13d753ee4d33a1dc58">nprobe</a> = index_ivfpq-&gt;nprobe;</div>
<div class="line"><a name="l00253"></a><span class="lineno">  253</span>&#160;                idx2.<a class="code" href="structfaiss_1_1IndexIVFPQ.html#a1c66ff073c18a1edbe8444c24d870583">use_precomputed_table</a> = 0;</div>
<div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;                idx2.<a class="code" href="structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f">is_trained</a> = index-&gt;<a class="code" href="structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f">is_trained</a>;</div>
<div class="line"><a name="l00255"></a><span class="lineno">  255</span>&#160;                copy_ivf_shard (index_ivfpq, &amp;idx2, n, i);</div>
<div class="line"><a name="l00256"></a><span class="lineno">  256</span>&#160;                shards[i] = sub_cloners[i].clone_Index(&amp;idx2);</div>
<div class="line"><a name="l00257"></a><span class="lineno">  257</span>&#160;            } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (index_ivfflat) {</div>
<div class="line"><a name="l00258"></a><span class="lineno">  258</span>&#160;                <a class="code" href="structfaiss_1_1IndexIVFFlat.html">faiss::IndexIVFFlat</a> idx2(</div>
<div class="line"><a name="l00259"></a><span class="lineno">  259</span>&#160;                    index_ivfflat-&gt;quantizer, index-&gt;<a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>,</div>
<div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160;                    index_ivfflat-&gt;nlist, index_ivfflat-&gt;metric_type);</div>
<div class="line"><a name="l00261"></a><span class="lineno">  261</span>&#160;                idx2.<a class="code" href="structfaiss_1_1IndexIVF.html#affed235eadf27a13d753ee4d33a1dc58">nprobe</a> = index_ivfflat-&gt;nprobe;</div>
<div class="line"><a name="l00262"></a><span class="lineno">  262</span>&#160;                copy_ivf_shard (index_ivfflat, &amp;idx2, n, i);</div>
<div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160;                shards[i] = sub_cloners[i].clone_Index(&amp;idx2);</div>
<div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160;            } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (index_flat) {</div>
<div class="line"><a name="l00265"></a><span class="lineno">  265</span>&#160;                <a class="code" href="structfaiss_1_1IndexFlat.html">faiss::IndexFlat</a> idx2 (</div>
<div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160;                    index-&gt;<a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>, index-&gt;<a class="code" href="structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e">metric_type</a>);</div>
<div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160;                shards[i] = sub_cloners[i].clone_Index(&amp;idx2);</div>
<div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;                <span class="keywordflow">if</span> (index-&gt;<a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a> &gt; 0) {</div>
<div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160;                    <span class="keywordtype">long</span> i0 = index-&gt;<a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a> * i / n;</div>
<div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;                    <span class="keywordtype">long</span> i1 = index-&gt;<a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a> * (i + 1) / n;</div>
<div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;                    shards[i]-&gt;add (</div>
<div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160;                         i1 - i0,</div>
<div class="line"><a name="l00273"></a><span class="lineno">  273</span>&#160;                         index_flat-&gt;xb.data() + i0 * index-&gt;<a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>);</div>
<div class="line"><a name="l00274"></a><span class="lineno">  274</span>&#160;                }</div>
<div class="line"><a name="l00275"></a><span class="lineno">  275</span>&#160;            }</div>
<div class="line"><a name="l00276"></a><span class="lineno">  276</span>&#160;        }</div>
<div class="line"><a name="l00277"></a><span class="lineno">  277</span>&#160;</div>
<div class="line"><a name="l00278"></a><span class="lineno">  278</span>&#160;        <span class="keywordtype">bool</span> successive_ids = index_flat != <span class="keyword">nullptr</span>;</div>
<div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160;        <a class="code" href="structfaiss_1_1IndexShardsTemplate.html">faiss::IndexShards</a> *res =</div>
<div class="line"><a name="l00280"></a><span class="lineno">  280</span>&#160;            <span class="keyword">new</span> <a class="code" href="structfaiss_1_1IndexShardsTemplate.html">faiss::IndexShards</a>(index-&gt;<a class="code" href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">d</a>, <span class="keyword">true</span>,</div>
<div class="line"><a name="l00281"></a><span class="lineno">  281</span>&#160;                                   successive_ids);</div>
<div class="line"><a name="l00282"></a><span class="lineno">  282</span>&#160;</div>
<div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160;        <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; n; i++) {</div>
<div class="line"><a name="l00284"></a><span class="lineno">  284</span>&#160;            res-&gt;<a class="code" href="structfaiss_1_1IndexShardsTemplate.html#a47a2e1f78d91025857f483be3eb6828a">add_shard</a>(shards[i]);</div>
<div class="line"><a name="l00285"></a><span class="lineno">  285</span>&#160;        }</div>
<div class="line"><a name="l00286"></a><span class="lineno">  286</span>&#160;        res-&gt;<a class="code" href="classfaiss_1_1ThreadedIndex.html#a33201cb008802a729f61c76d519cb58a">own_fields</a> = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160;        FAISS_ASSERT(index-&gt;<a class="code" href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">ntotal</a> == res-&gt;ntotal);</div>
<div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160;        <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;    }</div>
<div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160;</div>
<div class="line"><a name="l00291"></a><span class="lineno">  291</span>&#160;    <a class="code" href="structfaiss_1_1Index.html">Index</a> *clone_Index(<span class="keyword">const</span> <a class="code" href="structfaiss_1_1Index.html">Index</a> *index)<span class="keyword"> override </span>{</div>
<div class="line"><a name="l00292"></a><span class="lineno">  292</span>&#160;        <span class="keywordtype">long</span> n = sub_cloners.size();</div>
<div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160;        <span class="keywordflow">if</span> (n == 1)</div>
<div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160;            <span class="keywordflow">return</span> sub_cloners[0].clone_Index(index);</div>
<div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;</div>
<div class="line"><a name="l00296"></a><span class="lineno">  296</span>&#160;        <span class="keywordflow">if</span>(dynamic_cast&lt;const IndexFlat *&gt;(index) ||</div>
<div class="line"><a name="l00297"></a><span class="lineno">  297</span>&#160;           dynamic_cast&lt;const faiss::IndexIVFFlat *&gt;(index) ||</div>
<div class="line"><a name="l00298"></a><span class="lineno">  298</span>&#160;           dynamic_cast&lt;const faiss::IndexIVFPQ *&gt;(index)) {</div>
<div class="line"><a name="l00299"></a><span class="lineno">  299</span>&#160;            <span class="keywordflow">if</span>(!<a class="code" href="structfaiss_1_1gpu_1_1GpuMultipleClonerOptions.html#a7c5bd7a840f6641d5d68699f4416d79d">shard</a>) {</div>
<div class="line"><a name="l00300"></a><span class="lineno">  300</span>&#160;                <a class="code" href="classfaiss_1_1IndexReplicasTemplate.html">IndexReplicas</a> * res = <span class="keyword">new</span> <a class="code" href="classfaiss_1_1IndexReplicasTemplate.html">IndexReplicas</a>();</div>
<div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;                <span class="keywordflow">for</span>(<span class="keyword">auto</span> &amp; sub_cloner: sub_cloners) {</div>
<div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;                    res-&gt;<a class="code" href="classfaiss_1_1ThreadedIndex.html#a9a11a672369d48f45cf1dd1bfe0dad87">addIndex</a>(sub_cloner.clone_Index(index));</div>
<div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160;                }</div>
<div class="line"><a name="l00304"></a><span class="lineno">  304</span>&#160;                res-&gt;<a class="code" href="classfaiss_1_1ThreadedIndex.html#a33201cb008802a729f61c76d519cb58a">own_fields</a> = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160;                <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;            } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;                <span class="keywordflow">return</span> clone_Index_to_shards (index);</div>
<div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;            }</div>
<div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160;        } <span class="keywordflow">else</span> <span class="keywordflow">if</span>(<span class="keyword">auto</span> miq = dynamic_cast&lt;const MultiIndexQuantizer *&gt;(index)) {</div>
<div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;            <span class="keywordflow">if</span> (<a class="code" href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#abc7d0451773e0f2f640338533abc1397">verbose</a>) {</div>
<div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160;                printf(<span class="stringliteral">&quot;cloning MultiIndexQuantizer: &quot;</span></div>
<div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;                       <span class="stringliteral">&quot;will be valid only for search k=1\n&quot;</span>);</div>
<div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160;            }</div>
<div class="line"><a name="l00314"></a><span class="lineno">  314</span>&#160;            <span class="keyword">const</span> <a class="code" href="structfaiss_1_1ProductQuantizer.html">ProductQuantizer</a> &amp; pq = miq-&gt;pq;</div>
<div class="line"><a name="l00315"></a><span class="lineno">  315</span>&#160;            <a class="code" href="structfaiss_1_1IndexSplitVectors.html">IndexSplitVectors</a> *splitv = <span class="keyword">new</span> <a class="code" href="structfaiss_1_1IndexSplitVectors.html">IndexSplitVectors</a>(pq.<a class="code" href="structfaiss_1_1ProductQuantizer.html#a567cd512438f9e3404d9339a232d7695">d</a>, <span class="keyword">true</span>);</div>
<div class="line"><a name="l00316"></a><span class="lineno">  316</span>&#160;            splitv-&gt;own_fields = <span class="keyword">true</span>;</div>
<div class="line"><a name="l00317"></a><span class="lineno">  317</span>&#160;</div>
<div class="line"><a name="l00318"></a><span class="lineno">  318</span>&#160;            <span class="keywordflow">for</span> (<span class="keywordtype">int</span> m = 0; m &lt; pq.<a class="code" href="structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41">M</a>; m++) {</div>
<div class="line"><a name="l00319"></a><span class="lineno">  319</span>&#160;                <span class="comment">// which GPU(s) will be assigned to this sub-quantizer</span></div>
<div class="line"><a name="l00320"></a><span class="lineno">  320</span>&#160;</div>
<div class="line"><a name="l00321"></a><span class="lineno">  321</span>&#160;                <span class="keywordtype">long</span> i0 = m * n / pq.<a class="code" href="structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41">M</a>;</div>
<div class="line"><a name="l00322"></a><span class="lineno">  322</span>&#160;                <span class="keywordtype">long</span> i1 = pq.<a class="code" href="structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41">M</a> &lt;= n ? (m + 1) * n / pq.<a class="code" href="structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41">M</a> : i0 + 1;</div>
<div class="line"><a name="l00323"></a><span class="lineno">  323</span>&#160;                std::vector&lt;ToGpuCloner&gt; sub_cloners_2;</div>
<div class="line"><a name="l00324"></a><span class="lineno">  324</span>&#160;                sub_cloners_2.insert(</div>
<div class="line"><a name="l00325"></a><span class="lineno">  325</span>&#160;                      sub_cloners_2.begin(), sub_cloners.begin() + i0,</div>
<div class="line"><a name="l00326"></a><span class="lineno">  326</span>&#160;                      sub_cloners.begin() + i1);</div>
<div class="line"><a name="l00327"></a><span class="lineno">  327</span>&#160;                <a class="code" href="structfaiss_1_1gpu_1_1ToGpuClonerMultiple.html">ToGpuClonerMultiple</a> cm(sub_cloners_2, *<span class="keyword">this</span>);</div>
<div class="line"><a name="l00328"></a><span class="lineno">  328</span>&#160;                <a class="code" href="structfaiss_1_1IndexFlatL2.html">IndexFlatL2</a> idxc (pq.<a class="code" href="structfaiss_1_1ProductQuantizer.html#a467b451ca203544e42c250e4be65b983">dsub</a>);</div>
<div class="line"><a name="l00329"></a><span class="lineno">  329</span>&#160;                idxc.<a class="code" href="structfaiss_1_1IndexFlat.html#a406f028c702edec72477eacc5733f59c">add</a> (pq.<a class="code" href="structfaiss_1_1ProductQuantizer.html#a0feee45e4151547b7a0444c14bad398f">ksub</a>, pq.<a class="code" href="structfaiss_1_1ProductQuantizer.html#aab1109a29ba0544358e274d727b23cae">centroids</a>.data() + m * pq.<a class="code" href="structfaiss_1_1ProductQuantizer.html#a567cd512438f9e3404d9339a232d7695">d</a> * pq.<a class="code" href="structfaiss_1_1ProductQuantizer.html#a0feee45e4151547b7a0444c14bad398f">ksub</a>);</div>
<div class="line"><a name="l00330"></a><span class="lineno">  330</span>&#160;                <a class="code" href="structfaiss_1_1Index.html">Index</a> *idx2 = cm.clone_Index(&amp;idxc);</div>
<div class="line"><a name="l00331"></a><span class="lineno">  331</span>&#160;                splitv-&gt;add_sub_index(idx2);</div>
<div class="line"><a name="l00332"></a><span class="lineno">  332</span>&#160;            }</div>
<div class="line"><a name="l00333"></a><span class="lineno">  333</span>&#160;            <span class="keywordflow">return</span> splitv;</div>
<div class="line"><a name="l00334"></a><span class="lineno">  334</span>&#160;        } <span class="keywordflow">else</span> {</div>
<div class="line"><a name="l00335"></a><span class="lineno">  335</span>&#160;            <span class="keywordflow">return</span> Cloner::clone_Index(index);</div>
<div class="line"><a name="l00336"></a><span class="lineno">  336</span>&#160;        }</div>
<div class="line"><a name="l00337"></a><span class="lineno">  337</span>&#160;    }</div>
<div class="line"><a name="l00338"></a><span class="lineno">  338</span>&#160;</div>
<div class="line"><a name="l00339"></a><span class="lineno">  339</span>&#160;</div>
<div class="line"><a name="l00340"></a><span class="lineno">  340</span>&#160;};</div>
<div class="line"><a name="l00341"></a><span class="lineno">  341</span>&#160;</div>
<div class="line"><a name="l00342"></a><span class="lineno">  342</span>&#160;</div>
<div class="line"><a name="l00343"></a><span class="lineno">  343</span>&#160;</div>
<div class="line"><a name="l00344"></a><span class="lineno">  344</span>&#160;<a class="code" href="structfaiss_1_1Index.html">faiss::Index</a> * index_cpu_to_gpu_multiple(</div>
<div class="line"><a name="l00345"></a><span class="lineno">  345</span>&#160;       std::vector&lt;GpuResources*&gt; &amp; resources,</div>
<div class="line"><a name="l00346"></a><span class="lineno">  346</span>&#160;       std::vector&lt;int&gt; &amp;devices,</div>
<div class="line"><a name="l00347"></a><span class="lineno">  347</span>&#160;       <span class="keyword">const</span> <a class="code" href="structfaiss_1_1Index.html">faiss::Index</a> *index,</div>
<div class="line"><a name="l00348"></a><span class="lineno">  348</span>&#160;       <span class="keyword">const</span> <a class="code" href="structfaiss_1_1gpu_1_1GpuMultipleClonerOptions.html">GpuMultipleClonerOptions</a> *options)</div>
<div class="line"><a name="l00349"></a><span class="lineno">  349</span>&#160;{</div>
<div class="line"><a name="l00350"></a><span class="lineno">  350</span>&#160;    <a class="code" href="structfaiss_1_1gpu_1_1GpuMultipleClonerOptions.html">GpuMultipleClonerOptions</a> defaults;</div>
<div class="line"><a name="l00351"></a><span class="lineno">  351</span>&#160;    <a class="code" href="structfaiss_1_1gpu_1_1ToGpuClonerMultiple.html">ToGpuClonerMultiple</a> cl(resources, devices, options ? *options : defaults);</div>
<div class="line"><a name="l00352"></a><span class="lineno">  352</span>&#160;    <span class="keywordflow">return</span> cl.clone_Index(index);</div>
<div class="line"><a name="l00353"></a><span class="lineno">  353</span>&#160;}</div>
<div class="line"><a name="l00354"></a><span class="lineno">  354</span>&#160;</div>
<div class="line"><a name="l00355"></a><span class="lineno">  355</span>&#160;</div>
<div class="line"><a name="l00356"></a><span class="lineno">  356</span>&#160;</div>
<div class="line"><a name="l00357"></a><span class="lineno">  357</span>&#160;<span class="comment">/**********************************************************</span></div>
<div class="line"><a name="l00358"></a><span class="lineno">  358</span>&#160;<span class="comment"> * Parameters to auto-tune on GpuIndex&#39;es</span></div>
<div class="line"><a name="l00359"></a><span class="lineno">  359</span>&#160;<span class="comment"> **********************************************************/</span></div>
<div class="line"><a name="l00360"></a><span class="lineno">  360</span>&#160;</div>
<div class="line"><a name="l00361"></a><span class="lineno">  361</span>&#160;<span class="preprocessor">#define DC(classname) auto ix = dynamic_cast&lt;const classname *&gt;(index)</span></div>
<div class="line"><a name="l00362"></a><span class="lineno">  362</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00363"></a><span class="lineno">  363</span>&#160;</div>
<div class="line"><a name="l00364"></a><span class="lineno"><a class="line" href="structfaiss_1_1gpu_1_1GpuParameterSpace.html#ab2bf33a6f1579c3d42f656ded1df3398">  364</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1gpu_1_1GpuParameterSpace.html#ab2bf33a6f1579c3d42f656ded1df3398">GpuParameterSpace::initialize</a> (<span class="keyword">const</span> <a class="code" href="structfaiss_1_1Index.html">Index</a> * index)</div>
<div class="line"><a name="l00365"></a><span class="lineno">  365</span>&#160;{</div>
<div class="line"><a name="l00366"></a><span class="lineno">  366</span>&#160;    <span class="keywordflow">if</span> (DC (<a class="code" href="structfaiss_1_1IndexPreTransform.html">IndexPreTransform</a>)) {</div>
<div class="line"><a name="l00367"></a><span class="lineno">  367</span>&#160;        index = ix-&gt;index;</div>
<div class="line"><a name="l00368"></a><span class="lineno">  368</span>&#160;    }</div>
<div class="line"><a name="l00369"></a><span class="lineno">  369</span>&#160;    <span class="keywordflow">if</span> (DC (<a class="code" href="classfaiss_1_1IndexReplicasTemplate.html">IndexReplicas</a>)) {</div>
<div class="line"><a name="l00370"></a><span class="lineno">  370</span>&#160;        <span class="keywordflow">if</span> (ix-&gt;count() == 0) <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00371"></a><span class="lineno">  371</span>&#160;        index = ix-&gt;at(0);</div>
<div class="line"><a name="l00372"></a><span class="lineno">  372</span>&#160;    }</div>
<div class="line"><a name="l00373"></a><span class="lineno">  373</span>&#160;    <span class="keywordflow">if</span> (DC (<a class="code" href="structfaiss_1_1IndexShardsTemplate.html">IndexShards</a>)) {</div>
<div class="line"><a name="l00374"></a><span class="lineno">  374</span>&#160;        <span class="keywordflow">if</span> (ix-&gt;count() == 0) <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00375"></a><span class="lineno">  375</span>&#160;        index = ix-&gt;at(0);</div>
<div class="line"><a name="l00376"></a><span class="lineno">  376</span>&#160;    }</div>
<div class="line"><a name="l00377"></a><span class="lineno">  377</span>&#160;    <span class="keywordflow">if</span> (DC (<a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html">GpuIndexIVF</a>)) {</div>
<div class="line"><a name="l00378"></a><span class="lineno">  378</span>&#160;        <a class="code" href="structfaiss_1_1ParameterRange.html">ParameterRange</a> &amp; pr = <a class="code" href="structfaiss_1_1ParameterSpace.html#aeaa27a715fe3fceef5da18d894976833">add_range</a>(<span class="stringliteral">&quot;nprobe&quot;</span>);</div>
<div class="line"><a name="l00379"></a><span class="lineno">  379</span>&#160;        <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; 12; i++) {</div>
<div class="line"><a name="l00380"></a><span class="lineno">  380</span>&#160;            <span class="keywordtype">size_t</span> nprobe = 1 &lt;&lt; i;</div>
<div class="line"><a name="l00381"></a><span class="lineno">  381</span>&#160;            <span class="keywordflow">if</span> (nprobe &gt;= ix-&gt;getNumLists() ||</div>
<div class="line"><a name="l00382"></a><span class="lineno">  382</span>&#160;                nprobe &gt; getMaxKSelection()) <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00383"></a><span class="lineno">  383</span>&#160;            pr.values.push_back (nprobe);</div>
<div class="line"><a name="l00384"></a><span class="lineno">  384</span>&#160;        }</div>
<div class="line"><a name="l00385"></a><span class="lineno">  385</span>&#160;    }</div>
<div class="line"><a name="l00386"></a><span class="lineno">  386</span>&#160;    <span class="comment">// not sure we should call the parent initializer</span></div>
<div class="line"><a name="l00387"></a><span class="lineno">  387</span>&#160;}</div>
<div class="line"><a name="l00388"></a><span class="lineno">  388</span>&#160;</div>
<div class="line"><a name="l00389"></a><span class="lineno">  389</span>&#160;</div>
<div class="line"><a name="l00390"></a><span class="lineno">  390</span>&#160;</div>
<div class="line"><a name="l00391"></a><span class="lineno">  391</span>&#160;<span class="preprocessor">#undef DC</span></div>
<div class="line"><a name="l00392"></a><span class="lineno">  392</span>&#160;<span class="preprocessor"></span><span class="comment">// non-const version</span></div>
<div class="line"><a name="l00393"></a><span class="lineno">  393</span>&#160;<span class="preprocessor">#define DC(classname) auto *ix = dynamic_cast&lt;classname *&gt;(index)</span></div>
<div class="line"><a name="l00394"></a><span class="lineno">  394</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00395"></a><span class="lineno">  395</span>&#160;</div>
<div class="line"><a name="l00396"></a><span class="lineno">  396</span>&#160;</div>
<div class="line"><a name="l00397"></a><span class="lineno"><a class="line" href="structfaiss_1_1gpu_1_1GpuParameterSpace.html#a1820826bb47a51ec9f000118be9c83b2">  397</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="structfaiss_1_1gpu_1_1GpuParameterSpace.html#a1820826bb47a51ec9f000118be9c83b2">GpuParameterSpace::set_index_parameter</a> (</div>
<div class="line"><a name="l00398"></a><span class="lineno">  398</span>&#160;        <a class="code" href="structfaiss_1_1Index.html">Index</a> * index, <span class="keyword">const</span> std::string &amp; name, <span class="keywordtype">double</span> val)<span class="keyword"> const</span></div>
<div class="line"><a name="l00399"></a><span class="lineno">  399</span>&#160;<span class="keyword"></span>{</div>
<div class="line"><a name="l00400"></a><span class="lineno">  400</span>&#160;    <span class="keywordflow">if</span> (DC (<a class="code" href="classfaiss_1_1IndexReplicasTemplate.html">IndexReplicas</a>)) {</div>
<div class="line"><a name="l00401"></a><span class="lineno">  401</span>&#160;        <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = 0; i &lt; ix-&gt;count(); i++)</div>
<div class="line"><a name="l00402"></a><span class="lineno">  402</span>&#160;            <a class="code" href="structfaiss_1_1gpu_1_1GpuParameterSpace.html#a1820826bb47a51ec9f000118be9c83b2">set_index_parameter</a> (ix-&gt;at(i), name, val);</div>
<div class="line"><a name="l00403"></a><span class="lineno">  403</span>&#160;        <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00404"></a><span class="lineno">  404</span>&#160;    }</div>
<div class="line"><a name="l00405"></a><span class="lineno">  405</span>&#160;    <span class="keywordflow">if</span> (name == <span class="stringliteral">&quot;nprobe&quot;</span>) {</div>
<div class="line"><a name="l00406"></a><span class="lineno">  406</span>&#160;        <span class="keywordflow">if</span> (DC (<a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVF.html">GpuIndexIVF</a>)) {</div>
<div class="line"><a name="l00407"></a><span class="lineno">  407</span>&#160;            ix-&gt;setNumProbes (<span class="keywordtype">int</span> (val));</div>
<div class="line"><a name="l00408"></a><span class="lineno">  408</span>&#160;            <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00409"></a><span class="lineno">  409</span>&#160;        }</div>
<div class="line"><a name="l00410"></a><span class="lineno">  410</span>&#160;    }</div>
<div class="line"><a name="l00411"></a><span class="lineno">  411</span>&#160;    <span class="keywordflow">if</span> (name == <span class="stringliteral">&quot;use_precomputed_table&quot;</span>) {</div>
<div class="line"><a name="l00412"></a><span class="lineno">  412</span>&#160;        <span class="keywordflow">if</span> (DC (<a class="code" href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html">GpuIndexIVFPQ</a>)) {</div>
<div class="line"><a name="l00413"></a><span class="lineno">  413</span>&#160;            ix-&gt;setPrecomputedCodes(<span class="keywordtype">bool</span> (val));</div>
<div class="line"><a name="l00414"></a><span class="lineno">  414</span>&#160;            <span class="keywordflow">return</span>;</div>
<div class="line"><a name="l00415"></a><span class="lineno">  415</span>&#160;        }</div>
<div class="line"><a name="l00416"></a><span class="lineno">  416</span>&#160;    }</div>
<div class="line"><a name="l00417"></a><span class="lineno">  417</span>&#160;</div>
<div class="line"><a name="l00418"></a><span class="lineno">  418</span>&#160;    <span class="comment">// maybe normal index parameters apply?</span></div>
<div class="line"><a name="l00419"></a><span class="lineno">  419</span>&#160;    <a class="code" href="structfaiss_1_1ParameterSpace.html#ac630c153ffd12f9994452c92fe57dc17">ParameterSpace::set_index_parameter</a> (index, name, val);</div>
<div class="line"><a name="l00420"></a><span class="lineno">  420</span>&#160;}</div>
<div class="line"><a name="l00421"></a><span class="lineno">  421</span>&#160;</div>
<div class="line"><a name="l00422"></a><span class="lineno">  422</span>&#160;</div>
<div class="line"><a name="l00423"></a><span class="lineno">  423</span>&#160;</div>
<div class="line"><a name="l00424"></a><span class="lineno">  424</span>&#160;</div>
<div class="line"><a name="l00425"></a><span class="lineno">  425</span>&#160;} } <span class="comment">// namespace</span></div>
<div class="ttc" id="structfaiss_1_1IndexIVF_html"><div class="ttname"><a href="structfaiss_1_1IndexIVF.html">faiss::IndexIVF</a></div><div class="ttdef"><b>Definition:</b> <a href="IndexIVF_8h_source.html#l00090">IndexIVF.h:90</a></div></div>
<div class="ttc" id="structfaiss_1_1Cloner_html"><div class="ttname"><a href="structfaiss_1_1Cloner.html">faiss::Cloner</a></div><div class="ttdef"><b>Definition:</b> <a href="index__io_8h_source.html#l00078">index_io.h:78</a></div></div>
<div class="ttc" id="structfaiss_1_1IndexFlat_html"><div class="ttname"><a href="structfaiss_1_1IndexFlat.html">faiss::IndexFlat</a></div><div class="ttdef"><b>Definition:</b> <a href="IndexFlat_8h_source.html#l00021">IndexFlat.h:21</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuIndexIVFPQConfig_html_ae5b5c7acc06743e5bcca197bc33c30ec"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuIndexIVFPQConfig.html#ae5b5c7acc06743e5bcca197bc33c30ec">faiss::gpu::GpuIndexIVFPQConfig::usePrecomputedTables</a></div><div class="ttdeci">bool usePrecomputedTables</div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFPQ_8h_source.html#l00034">GpuIndexIVFPQ.h:34</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuMultipleClonerOptions_html_a7c5bd7a840f6641d5d68699f4416d79d"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuMultipleClonerOptions.html#a7c5bd7a840f6641d5d68699f4416d79d">faiss::gpu::GpuMultipleClonerOptions::shard</a></div><div class="ttdeci">bool shard</div><div class="ttdef"><b>Definition:</b> <a href="GpuClonerOptions_8h_source.html#l00047">GpuClonerOptions.h:47</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuIndexFlatConfig_html_a0342a26f5e59563bfe04f3f80e3b27f0"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuIndexFlatConfig.html#a0342a26f5e59563bfe04f3f80e3b27f0">faiss::gpu::GpuIndexFlatConfig::storeTransposed</a></div><div class="ttdeci">bool storeTransposed</div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexFlat_8h_source.html#l00046">GpuIndexFlat.h:46</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuClonerOptions_html_a5f2470ec5b2a8fe7aae0542f113b781d"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#a5f2470ec5b2a8fe7aae0542f113b781d">faiss::gpu::GpuClonerOptions::storeTransposed</a></div><div class="ttdeci">bool storeTransposed</div><div class="ttdoc">For GpuIndexFlat, store data in transposed layout? </div><div class="ttdef"><b>Definition:</b> <a href="GpuClonerOptions_8h_source.html#l00036">GpuClonerOptions.h:36</a></div></div>
<div class="ttc" id="structfaiss_1_1IndexIVF_html_affed235eadf27a13d753ee4d33a1dc58"><div class="ttname"><a href="structfaiss_1_1IndexIVF.html#affed235eadf27a13d753ee4d33a1dc58">faiss::IndexIVF::nprobe</a></div><div class="ttdeci">size_t nprobe</div><div class="ttdoc">number of probes at query time </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVF_8h_source.html#l00097">IndexIVF.h:97</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuParameterSpace_html_ab2bf33a6f1579c3d42f656ded1df3398"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuParameterSpace.html#ab2bf33a6f1579c3d42f656ded1df3398">faiss::gpu::GpuParameterSpace::initialize</a></div><div class="ttdeci">void initialize(const faiss::Index *index) override</div><div class="ttdoc">initialize with reasonable parameters for the index </div><div class="ttdef"><b>Definition:</b> <a href="GpuAutoTune_8cpp_source.html#l00364">GpuAutoTune.cpp:364</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuClonerOptions_html"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuClonerOptions.html">faiss::gpu::GpuClonerOptions</a></div><div class="ttdoc">set some options on how to copy to GPU </div><div class="ttdef"><b>Definition:</b> <a href="GpuClonerOptions_8h_source.html#l00015">GpuClonerOptions.h:15</a></div></div>
<div class="ttc" id="structfaiss_1_1IndexFlatL2_html"><div class="ttname"><a href="structfaiss_1_1IndexFlatL2.html">faiss::IndexFlatL2</a></div><div class="ttdef"><b>Definition:</b> <a href="IndexFlat_8h_source.html#l00077">IndexFlat.h:77</a></div></div>
<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVFFlat_html_a96fd66c31c7e46b1549ed61d1b3476f3"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVFFlat.html#a96fd66c31c7e46b1549ed61d1b3476f3">faiss::gpu::GpuIndexIVFFlat::copyFrom</a></div><div class="ttdeci">void copyFrom(const faiss::IndexIVFFlat *index)</div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFFlat_8cu_source.html#l00077">GpuIndexIVFFlat.cu:77</a></div></div>
<div class="ttc" id="structfaiss_1_1ProductQuantizer_html_a467b451ca203544e42c250e4be65b983"><div class="ttname"><a href="structfaiss_1_1ProductQuantizer.html#a467b451ca203544e42c250e4be65b983">faiss::ProductQuantizer::dsub</a></div><div class="ttdeci">size_t dsub</div><div class="ttdoc">dimensionality of each subvector </div><div class="ttdef"><b>Definition:</b> <a href="ProductQuantizer_8h_source.html#l00032">ProductQuantizer.h:32</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuClonerOptions_html_abc9c607f2dfc9f23942a523fb49c63fe"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#abc9c607f2dfc9f23942a523fb49c63fe">faiss::gpu::GpuClonerOptions::usePrecomputed</a></div><div class="ttdeci">bool usePrecomputed</div><div class="ttdoc">use precomputed tables? </div><div class="ttdef"><b>Definition:</b> <a href="GpuClonerOptions_8h_source.html#l00030">GpuClonerOptions.h:30</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuIndexIVFFlatConfig_html_ab98ac354bcd5632976f7edc2deda6e57"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuIndexIVFFlatConfig.html#ab98ac354bcd5632976f7edc2deda6e57">faiss::gpu::GpuIndexIVFFlatConfig::useFloat16IVFStorage</a></div><div class="ttdeci">bool useFloat16IVFStorage</div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFFlat_8h_source.html#l00027">GpuIndexIVFFlat.h:27</a></div></div>
<div class="ttc" id="structfaiss_1_1IndexPreTransform_html"><div class="ttname"><a href="structfaiss_1_1IndexPreTransform.html">faiss::IndexPreTransform</a></div><div class="ttdef"><b>Definition:</b> <a href="VectorTransform_8h_source.html#l00271">VectorTransform.h:271</a></div></div>
<div class="ttc" id="classfaiss_1_1gpu_1_1GpuResources_html"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuResources.html">faiss::gpu::GpuResources</a></div><div class="ttdef"><b>Definition:</b> <a href="GpuResources_8h_source.html#l00021">GpuResources.h:21</a></div></div>
<div class="ttc" id="structfaiss_1_1IndexIVFFlat_html"><div class="ttname"><a href="structfaiss_1_1IndexIVFFlat.html">faiss::IndexIVFFlat</a></div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFFlat_8h_source.html#l00024">IndexIVFFlat.h:24</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuMultipleClonerOptions_html"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuMultipleClonerOptions.html">faiss::gpu::GpuMultipleClonerOptions</a></div><div class="ttdef"><b>Definition:</b> <a href="GpuClonerOptions_8h_source.html#l00042">GpuClonerOptions.h:42</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuIndexIVFPQConfig_html_a9dbbec78d77d90b7b150f543e477cc49"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuIndexIVFPQConfig.html#a9dbbec78d77d90b7b150f543e477cc49">faiss::gpu::GpuIndexIVFPQConfig::useFloat16LookupTables</a></div><div class="ttdeci">bool useFloat16LookupTables</div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFPQ_8h_source.html#l00030">GpuIndexIVFPQ.h:30</a></div></div>
<div class="ttc" id="structfaiss_1_1ParameterSpace_html_aeaa27a715fe3fceef5da18d894976833"><div class="ttname"><a href="structfaiss_1_1ParameterSpace.html#aeaa27a715fe3fceef5da18d894976833">faiss::ParameterSpace::add_range</a></div><div class="ttdeci">ParameterRange &amp; add_range(const char *name)</div><div class="ttdoc">add a new parameter (or return it if it exists) </div><div class="ttdef"><b>Definition:</b> <a href="AutoTune_8cpp_source.html#l00333">AutoTune.cpp:333</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuIndexFlatConfig_html_afd694186c87751937a646f3db2c8ba3d"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuIndexFlatConfig.html#afd694186c87751937a646f3db2c8ba3d">faiss::gpu::GpuIndexFlatConfig::useFloat16</a></div><div class="ttdeci">bool useFloat16</div><div class="ttdoc">Whether or not data is stored as float16. </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexFlat_8h_source.html#l00033">GpuIndexFlat.h:33</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuIndexConfig_html_aab05a0aa7b42feae7df4e556a52ead57"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuIndexConfig.html#aab05a0aa7b42feae7df4e556a52ead57">faiss::gpu::GpuIndexConfig::device</a></div><div class="ttdeci">int device</div><div class="ttdoc">GPU device on which the index is resident. </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndex_8h_source.html#l00025">GpuIndex.h:25</a></div></div>
<div class="ttc" id="structfaiss_1_1IndexSplitVectors_html"><div class="ttname"><a href="structfaiss_1_1IndexSplitVectors.html">faiss::IndexSplitVectors</a></div><div class="ttdef"><b>Definition:</b> <a href="MetaIndexes_8h_source.html#l00082">MetaIndexes.h:82</a></div></div>
<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVF_html"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVF.html">faiss::gpu::GpuIndexIVF</a></div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVF_8h_source.html#l00035">GpuIndexIVF.h:35</a></div></div>
<div class="ttc" id="structfaiss_1_1Index_html_a2a002388d2c081c2dbab8508dcefe73d"><div class="ttname"><a href="structfaiss_1_1Index.html#a2a002388d2c081c2dbab8508dcefe73d">faiss::Index::d</a></div><div class="ttdeci">int d</div><div class="ttdoc">vector dimension </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00066">Index.h:66</a></div></div>
<div class="ttc" id="structfaiss_1_1IndexIVF_html_aa64ecc5e7b286e9b0f252796edd4714b"><div class="ttname"><a href="structfaiss_1_1IndexIVF.html#aa64ecc5e7b286e9b0f252796edd4714b">faiss::IndexIVF::copy_subset_to</a></div><div class="ttdeci">virtual void copy_subset_to(IndexIVF &amp;other, int subset_type, idx_t a1, idx_t a2) const </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVF_8cpp_source.html#l00748">IndexIVF.cpp:748</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuIndexFlatConfig_html"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuIndexFlatConfig.html">faiss::gpu::GpuIndexFlatConfig</a></div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexFlat_8h_source.html#l00025">GpuIndexFlat.h:25</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuIndexIVFConfig_html_a6d357a9a67a2fed9c8e7b139712d30f6"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuIndexIVFConfig.html#a6d357a9a67a2fed9c8e7b139712d30f6">faiss::gpu::GpuIndexIVFConfig::flatConfig</a></div><div class="ttdeci">GpuIndexFlatConfig flatConfig</div><div class="ttdoc">Configuration for the coarse quantizer object. </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVF_8h_source.html#l00032">GpuIndexIVF.h:32</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuParameterSpace_html_a1820826bb47a51ec9f000118be9c83b2"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuParameterSpace.html#a1820826bb47a51ec9f000118be9c83b2">faiss::gpu::GpuParameterSpace::set_index_parameter</a></div><div class="ttdeci">void set_index_parameter(faiss::Index *index, const std::string &amp;name, double val) const override</div><div class="ttdoc">set a combination of parameters on an index </div><div class="ttdef"><b>Definition:</b> <a href="GpuAutoTune_8cpp_source.html#l00397">GpuAutoTune.cpp:397</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuIndexIVFPQConfig_html"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuIndexIVFPQConfig.html">faiss::gpu::GpuIndexIVFPQConfig</a></div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFPQ_8h_source.html#l00021">GpuIndexIVFPQ.h:21</a></div></div>
<div class="ttc" id="structfaiss_1_1IndexIVFPQ_html"><div class="ttname"><a href="structfaiss_1_1IndexIVFPQ.html">faiss::IndexIVFPQ</a></div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFPQ_8h_source.html#l00034">IndexIVFPQ.h:34</a></div></div>
<div class="ttc" id="classfaiss_1_1ThreadedIndex_html_a33201cb008802a729f61c76d519cb58a"><div class="ttname"><a href="classfaiss_1_1ThreadedIndex.html#a33201cb008802a729f61c76d519cb58a">faiss::ThreadedIndex::own_fields</a></div><div class="ttdeci">bool own_fields</div><div class="ttdoc">Whether or not we are responsible for deleting our contained indices. </div><div class="ttdef"><b>Definition:</b> <a href="ThreadedIndex_8h_source.html#l00059">ThreadedIndex.h:59</a></div></div>
<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVFPQ_html_a4e7d62e21f7e23fa4e94c69131389eea"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html#a4e7d62e21f7e23fa4e94c69131389eea">faiss::gpu::GpuIndexIVFPQ::reserveMemory</a></div><div class="ttdeci">void reserveMemory(size_t numVecs)</div><div class="ttdoc">Reserve GPU memory in our inverted lists for this number of vectors. </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFPQ_8cu_source.html#l00196">GpuIndexIVFPQ.cu:196</a></div></div>
<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVFFlat_html_a329d7734f1285788d10c1fbf1f88d72f"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVFFlat.html#a329d7734f1285788d10c1fbf1f88d72f">faiss::gpu::GpuIndexIVFFlat::reserveMemory</a></div><div class="ttdeci">void reserveMemory(size_t numVecs)</div><div class="ttdoc">Reserve GPU memory in our inverted lists for this number of vectors. </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFFlat_8cu_source.html#l00069">GpuIndexIVFFlat.cu:69</a></div></div>
<div class="ttc" id="classfaiss_1_1ThreadedIndex_html_a9a11a672369d48f45cf1dd1bfe0dad87"><div class="ttname"><a href="classfaiss_1_1ThreadedIndex.html#a9a11a672369d48f45cf1dd1bfe0dad87">faiss::ThreadedIndex::addIndex</a></div><div class="ttdeci">void addIndex(IndexT *index)</div><div class="ttdef"><b>Definition:</b> <a href="ThreadedIndex-inl_8h_source.html#l00049">ThreadedIndex-inl.h:49</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuClonerOptions_html_ac7cc57d6091d6a79ea6020bf8d1fbe27"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ac7cc57d6091d6a79ea6020bf8d1fbe27">faiss::gpu::GpuClonerOptions::useFloat16</a></div><div class="ttdeci">bool useFloat16</div><div class="ttdef"><b>Definition:</b> <a href="GpuClonerOptions_8h_source.html#l00027">GpuClonerOptions.h:27</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuClonerOptions_html_ad960ac51b7cc607fcb1a1b07efc32a9e"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ad960ac51b7cc607fcb1a1b07efc32a9e">faiss::gpu::GpuClonerOptions::indicesOptions</a></div><div class="ttdeci">IndicesOptions indicesOptions</div><div class="ttdef"><b>Definition:</b> <a href="GpuClonerOptions_8h_source.html#l00020">GpuClonerOptions.h:20</a></div></div>
<div class="ttc" id="structfaiss_1_1ProductQuantizer_html_a0feee45e4151547b7a0444c14bad398f"><div class="ttname"><a href="structfaiss_1_1ProductQuantizer.html#a0feee45e4151547b7a0444c14bad398f">faiss::ProductQuantizer::ksub</a></div><div class="ttdeci">size_t ksub</div><div class="ttdoc">number of centroids for each subquantizer </div><div class="ttdef"><b>Definition:</b> <a href="ProductQuantizer_8h_source.html#l00034">ProductQuantizer.h:34</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuMultipleClonerOptions_html_a9548f823297298b0a78109dec7feb45e"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuMultipleClonerOptions.html#a9548f823297298b0a78109dec7feb45e">faiss::gpu::GpuMultipleClonerOptions::shard_type</a></div><div class="ttdeci">int shard_type</div><div class="ttdoc">IndexIVF::copy_subset_to subset type. </div><div class="ttdef"><b>Definition:</b> <a href="GpuClonerOptions_8h_source.html#l00050">GpuClonerOptions.h:50</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuClonerOptions_html_a85f3093908b6e9a503c24bb226b17b1b"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#a85f3093908b6e9a503c24bb226b17b1b">faiss::gpu::GpuClonerOptions::useFloat16CoarseQuantizer</a></div><div class="ttdeci">bool useFloat16CoarseQuantizer</div><div class="ttdoc">is the coarse quantizer in float16? </div><div class="ttdef"><b>Definition:</b> <a href="GpuClonerOptions_8h_source.html#l00023">GpuClonerOptions.h:23</a></div></div>
<div class="ttc" id="structfaiss_1_1Index_html_a6970683faa021b7a6f1a0865c0d4eccd"><div class="ttname"><a href="structfaiss_1_1Index.html#a6970683faa021b7a6f1a0865c0d4eccd">faiss::Index::ntotal</a></div><div class="ttdeci">idx_t ntotal</div><div class="ttdoc">total nb of indexed vectors </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00067">Index.h:67</a></div></div>
<div class="ttc" id="structfaiss_1_1IndexShardsTemplate_html_a47a2e1f78d91025857f483be3eb6828a"><div class="ttname"><a href="structfaiss_1_1IndexShardsTemplate.html#a47a2e1f78d91025857f483be3eb6828a">faiss::IndexShardsTemplate::add_shard</a></div><div class="ttdeci">void add_shard(IndexT *index)</div><div class="ttdoc">Alias for addIndex() </div><div class="ttdef"><b>Definition:</b> <a href="IndexShards_8h_source.html#l00056">IndexShards.h:56</a></div></div>
<div class="ttc" id="structfaiss_1_1IndexFlat_html_a406f028c702edec72477eacc5733f59c"><div class="ttname"><a href="structfaiss_1_1IndexFlat.html#a406f028c702edec72477eacc5733f59c">faiss::IndexFlat::add</a></div><div class="ttdeci">void add(idx_t n, const float *x) override</div><div class="ttdef"><b>Definition:</b> <a href="IndexFlat_8cpp_source.html#l00030">IndexFlat.cpp:30</a></div></div>
<div class="ttc" id="structfaiss_1_1IndexShardsTemplate_html"><div class="ttname"><a href="structfaiss_1_1IndexShardsTemplate.html">faiss::IndexShardsTemplate</a></div><div class="ttdef"><b>Definition:</b> <a href="IndexShards_8h_source.html#l00020">IndexShards.h:20</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1ToGpuClonerMultiple_html"><div class="ttname"><a href="structfaiss_1_1gpu_1_1ToGpuClonerMultiple.html">faiss::gpu::ToGpuClonerMultiple</a></div><div class="ttdef"><b>Definition:</b> <a href="GpuAutoTune_8cpp_source.html#l00178">GpuAutoTune.cpp:178</a></div></div>
<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVFPQ_html"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVFPQ.html">faiss::gpu::GpuIndexIVFPQ</a></div><div class="ttdoc">IVFPQ index for the GPU. </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFPQ_8h_source.html#l00038">GpuIndexIVFPQ.h:38</a></div></div>
<div class="ttc" id="structfaiss_1_1ParameterSpace_html_ac630c153ffd12f9994452c92fe57dc17"><div class="ttname"><a href="structfaiss_1_1ParameterSpace.html#ac630c153ffd12f9994452c92fe57dc17">faiss::ParameterSpace::set_index_parameter</a></div><div class="ttdeci">virtual void set_index_parameter(Index *index, const std::string &amp;name, double val) const </div><div class="ttdoc">set one of the parameters </div><div class="ttdef"><b>Definition:</b> <a href="AutoTune_8cpp_source.html#l00455">AutoTune.cpp:455</a></div></div>
<div class="ttc" id="structfaiss_1_1Index_html_a8e18f641854b2bde83ecff0a2f9a6f4e"><div class="ttname"><a href="structfaiss_1_1Index.html#a8e18f641854b2bde83ecff0a2f9a6f4e">faiss::Index::metric_type</a></div><div class="ttdeci">MetricType metric_type</div><div class="ttdoc">type of metric this index uses for search </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00074">Index.h:74</a></div></div>
<div class="ttc" id="structfaiss_1_1IndexIVFPQ_html_a007303be116c8da65b6d058e3fc77d16"><div class="ttname"><a href="structfaiss_1_1IndexIVFPQ.html#a007303be116c8da65b6d058e3fc77d16">faiss::IndexIVFPQ::pq</a></div><div class="ttdeci">ProductQuantizer pq</div><div class="ttdoc">produces the codes </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFPQ_8h_source.html#l00037">IndexIVFPQ.h:37</a></div></div>
<div class="ttc" id="structfaiss_1_1ProductQuantizer_html_a83600e328893ce5f41fe459f5a3acf41"><div class="ttname"><a href="structfaiss_1_1ProductQuantizer.html#a83600e328893ce5f41fe459f5a3acf41">faiss::ProductQuantizer::M</a></div><div class="ttdeci">size_t M</div><div class="ttdoc">number of subquantizers </div><div class="ttdef"><b>Definition:</b> <a href="ProductQuantizer_8h_source.html#l00028">ProductQuantizer.h:28</a></div></div>
<div class="ttc" id="structfaiss_1_1Index_html"><div class="ttname"><a href="structfaiss_1_1Index.html">faiss::Index</a></div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00061">Index.h:61</a></div></div>
<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexFlat_html"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexFlat.html">faiss::gpu::GpuIndexFlat</a></div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexFlat_8h_source.html#l00052">GpuIndexFlat.h:52</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1ToGpuCloner_html"><div class="ttname"><a href="structfaiss_1_1gpu_1_1ToGpuCloner.html">faiss::gpu::ToGpuCloner</a></div><div class="ttdef"><b>Definition:</b> <a href="GpuAutoTune_8cpp_source.html#l00101">GpuAutoTune.cpp:101</a></div></div>
<div class="ttc" id="structfaiss_1_1ProductQuantizer_html"><div class="ttname"><a href="structfaiss_1_1ProductQuantizer.html">faiss::ProductQuantizer</a></div><div class="ttdef"><b>Definition:</b> <a href="ProductQuantizer_8h_source.html#l00023">ProductQuantizer.h:23</a></div></div>
<div class="ttc" id="structfaiss_1_1Index_html_a6e92732617c4dbe364e7678dd8773a7f"><div class="ttname"><a href="structfaiss_1_1Index.html#a6e92732617c4dbe364e7678dd8773a7f">faiss::Index::is_trained</a></div><div class="ttdeci">bool is_trained</div><div class="ttdoc">set if the Index does not require training, or if training is done already </div><div class="ttdef"><b>Definition:</b> <a href="Index_8h_source.html#l00071">Index.h:71</a></div></div>
<div class="ttc" id="classfaiss_1_1IndexReplicasTemplate_html"><div class="ttname"><a href="classfaiss_1_1IndexReplicasTemplate.html">faiss::IndexReplicasTemplate</a></div><div class="ttdef"><b>Definition:</b> <a href="IndexReplicas_8h_source.html#l00021">IndexReplicas.h:21</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuIndexIVFFlatConfig_html"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuIndexIVFFlatConfig.html">faiss::gpu::GpuIndexIVFFlatConfig</a></div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFFlat_8h_source.html#l00020">GpuIndexIVFFlat.h:20</a></div></div>
<div class="ttc" id="structfaiss_1_1ParameterRange_html"><div class="ttname"><a href="structfaiss_1_1ParameterRange.html">faiss::ParameterRange</a></div><div class="ttdoc">possible values of a parameter, sorted from least to most expensive/accurate </div><div class="ttdef"><b>Definition:</b> <a href="AutoTune_8h_source.html#l00125">AutoTune.h:125</a></div></div>
<div class="ttc" id="structfaiss_1_1ProductQuantizer_html_a567cd512438f9e3404d9339a232d7695"><div class="ttname"><a href="structfaiss_1_1ProductQuantizer.html#a567cd512438f9e3404d9339a232d7695">faiss::ProductQuantizer::d</a></div><div class="ttdeci">size_t d</div><div class="ttdoc">size of the input vectors </div><div class="ttdef"><b>Definition:</b> <a href="ProductQuantizer_8h_source.html#l00027">ProductQuantizer.h:27</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1ToCPUCloner_html"><div class="ttname"><a href="structfaiss_1_1gpu_1_1ToCPUCloner.html">faiss::gpu::ToCPUCloner</a></div><div class="ttdef"><b>Definition:</b> <a href="GpuAutoTune_8cpp_source.html#l00033">GpuAutoTune.cpp:33</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuIndexIVFConfig_html_af432221761d48e4753f501208a60264d"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuIndexIVFConfig.html#af432221761d48e4753f501208a60264d">faiss::gpu::GpuIndexIVFConfig::indicesOptions</a></div><div class="ttdeci">IndicesOptions indicesOptions</div><div class="ttdoc">Index storage options for the GPU. </div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVF_8h_source.html#l00029">GpuIndexIVF.h:29</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuClonerOptions_html_abc7d0451773e0f2f640338533abc1397"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#abc7d0451773e0f2f640338533abc1397">faiss::gpu::GpuClonerOptions::verbose</a></div><div class="ttdeci">bool verbose</div><div class="ttdoc">Set verbose options on the index. </div><div class="ttdef"><b>Definition:</b> <a href="GpuClonerOptions_8h_source.html#l00039">GpuClonerOptions.h:39</a></div></div>
<div class="ttc" id="classfaiss_1_1gpu_1_1GpuIndexIVFFlat_html"><div class="ttname"><a href="classfaiss_1_1gpu_1_1GpuIndexIVFFlat.html">faiss::gpu::GpuIndexIVFFlat</a></div><div class="ttdef"><b>Definition:</b> <a href="GpuIndexIVFFlat_8h_source.html#l00032">GpuIndexIVFFlat.h:32</a></div></div>
<div class="ttc" id="structfaiss_1_1gpu_1_1GpuClonerOptions_html_ab60dd87e51af59373a48d73852573f04"><div class="ttname"><a href="structfaiss_1_1gpu_1_1GpuClonerOptions.html#ab60dd87e51af59373a48d73852573f04">faiss::gpu::GpuClonerOptions::reserveVecs</a></div><div class="ttdeci">long reserveVecs</div><div class="ttdoc">reserve vectors in the invfiles? </div><div class="ttdef"><b>Definition:</b> <a href="GpuClonerOptions_8h_source.html#l00033">GpuClonerOptions.h:33</a></div></div>
<div class="ttc" id="structfaiss_1_1IndexIVFPQ_html_a1c66ff073c18a1edbe8444c24d870583"><div class="ttname"><a href="structfaiss_1_1IndexIVFPQ.html#a1c66ff073c18a1edbe8444c24d870583">faiss::IndexIVFPQ::use_precomputed_table</a></div><div class="ttdeci">int use_precomputed_table</div><div class="ttdoc">if by_residual, build precompute tables </div><div class="ttdef"><b>Definition:</b> <a href="IndexIVFPQ_8h_source.html#l00054">IndexIVFPQ.h:54</a></div></div>
<div class="ttc" id="structfaiss_1_1ProductQuantizer_html_aab1109a29ba0544358e274d727b23cae"><div class="ttname"><a href="structfaiss_1_1ProductQuantizer.html#aab1109a29ba0544358e274d727b23cae">faiss::ProductQuantizer::centroids</a></div><div class="ttdeci">std::vector&lt; float &gt; centroids</div><div class="ttdoc">Centroid table, size M * ksub * dsub. </div><div class="ttdef"><b>Definition:</b> <a href="ProductQuantizer_8h_source.html#l00055">ProductQuantizer.h:55</a></div></div>
</div><!-- fragment --></div><!-- contents -->
<!-- start footer part -->
<hr class="footer"/><address class="footer"><small>
Generated by &#160;<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/>
</a> 1.8.5
</small></address>
</body>
</html>
